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Finding the Third Proportional to 21,294 and 45,879.75

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Solution

The third proportional to 21,294 and 45,879.75 is: 98,851.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,294 : 45,879.75 = 45,879.75 : x
  2. Step 2: Convert to fraction form
    21,294/45,879.75 = 45,879.75/x
  3. Step 3: Cross multiply
    21,294x = 45,879.75 × 45,879.75
  4. Step 4: Simplify right side
    21,294x = 2,104,951,460.06
  5. Step 5: Solve for x
    x = 2,104,951,460.06/21,294
  6. Step 6: Final answer
    x = 98,851.86

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.